18398988

素因数分解:

$2^2\times 3^5\times {\mathrm{23}}^1\times {\mathrm{823}}^1$

素因数の和:865

約数の個数: 72

約数和(自身を含む): 50389248

約数和(自身を除く): 31990260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 81, 92, 108, 138, 162, 207, 243, 276, 324, 414, 486, 621, 823, 828, 972, 1242, 1646, 1863, 2469, 2484, 3292, 3726, 4938, 5589, 7407, 7452, 9876, 11178, 14814, 18929, 22221, 22356, 29628, 37858, 44442, 56787, 66663, 75716, 88884, 113574, 133326, 170361, 199989, 227148, 266652, 340722, 399978, 511083, 681444, 799956, 1022166, 1533249, 2044332, 3066498, 4599747, 6132996, 9199494, 18398988]

約数ペア:

[(1, 18398988), (2, 9199494), (3, 6132996), (4, 4599747), (6, 3066498), (9, 2044332), (12, 1533249), (18, 1022166), (23, 799956), (27, 681444), (36, 511083), (46, 399978), (54, 340722), (69, 266652), (81, 227148), (92, 199989), (108, 170361), (138, 133326), (162, 113574), (207, 88884), (243, 75716), (276, 66663), (324, 56787), (414, 44442), (486, 37858), (621, 29628), (823, 22356), (828, 22221), (972, 18929), (1242, 14814), (1646, 11178), (1863, 9876), (2469, 7452), (2484, 7407), (3292, 5589), (3726, 4938)]